Mapping Units -Maps- Noise Strategy (UME) 3ªPhase

Polygons declared by the competent authorities as geographical information delimiting the Strategic Noise Mapping Units (SMUs), for which SRMs are produced and geographical information on the acoustic indicators Lden, Ln, Ld and Le obtained in the works is communicated. In cases where the reported geometric entity is a polygon (airports and agglomerations) such entity is respected. In the case of , lines, the polygon generated by a buffer of 1m width around the declared axis for the infrastructure (roads and railways) has been defined. In this way the CDE is homogeneous and unique, including only polygons. EMUs corresponding to the third phase of implementation of Directive 2002/49/EC of the European Parliament and of the Council of 25 June 2002 relating to the assessment and management of environmental noise (END). Entities have been included in a single geodatabase for all strategic noise mapping units that had delivered geospatial data from their third-phase SRMs to the Ministry and these were available to the public in the Basic Information System on Acoustic Pollution (SICA) as of 17/11/2021. It should be noted that the information is not complete, because until the fourth phase of implementation of the NDS there was no legal obligation to deliver geospatial information, and for different mapping units (UME) this may not have been delivered, or it has been delivered in the form of polygons (not included in the coverage of information with lines), or there may be delays or non-deliveries. The information included is that available in SICA as at 17/11/2021.